Composition for use in burning artificial teeth.



HEINRICH WIENAND, F FRANKFORT-ON-THE-MAIN, GERMANY.

COMPOSITION FOR USE IN BURNING ARTIFICIAL TEETH.

No Drawing.

Specification of L etters Patent.

Application filed March 27, 1909. Serial No. 486,232.

Patented July 26, 1910.

h To all whom it may concern:

Be it known that I, HEINRICH WIENAND, a subject of the German Emperor,residing at Frankfort-on-the-Main, in Germany, have invented certain newand useful Composition for Use in Burning Artificial Teeth, of

"which the following is a specification.

This invention relates to the manufacture of artificial teeth, and moreparticularly to the composition of the mass on which the teeth areplaced for the purpose of being burned.

According to the invention this mass is composed of kaolin, kieselguhror quartz sand and particles of metal of high melting point, for examplenickel or an alloy of nickel, saturated with carbon, the metal beingmixed with the other ingredients in granular or other suitable form andsize. The mixture is placed in a dry state or in the form of paste inthe receptacle used for burning the teeth, and the latter are thenplaced on the mass.

During the burning process the metal fastening pins which may be ofnickel or an alloy consisting principally of nickel of the teeth absorbcarbon, and to some extent metal, from the mixture described. The effectof this absorption is to render the said pins soft, pliable andunoxidizable. The mixture cools very slowly after the burning process,and thus prevents cracking of the teeth. The pressure of the kaolin,kieselguhr and sand prevents adhesion of the metal particles to theporcelain mass of which the teeth are made and the fire-proof qualitiesof these ingredients render the same well adapted for the purposes ofthe burning process. One or the other of these ingredients may beomitted, and another fireproof substance substituted therefor.

What I claim as my invention and desire to secure by Letters Patent ofthe United States is 1. A composition of matter for use in the burningof artificial teeth consisting of a mixture of a metal of high meltingpoint saturated with carbon and kaolin kieselguhr and sand.

2. A composition of matter for use in the burning of artificial teethconsisting of a mixture of a nickel saturated with carbon and kaolinkieselguhr and sand.

In witness whereof I have signed this specification in the presence oftwo witnesses.

HEINRICH WIENAND.

